baber/WOPTO huggingface dataset:
Patent GB-296273-A (GB)
Title: Improvements in or relating to endless conveyors or elevators
IPC: B65G17/02
Filed: 1928-03-13
Abstract: 296,273. Parker, J. March 13, 1928. Addition to 293,370. Flat endless-belt conveyers; auxiliary ropes; driving-gear; casings; sectional framework; guiding; guards and shields to prevent falling-off and spilling.-In order that the conveyer of the parent Specification may be used along the line of the working face in a coal mine, or in the road or gateway leading directly from the working face, its height is reduced considerably and its components are so designed that it can be assembled or dismantled in sections. The clamps 8 which embrace the edges of the belt 6 are pivoted on pins 7 carried by collars 9 which are slidable along the axles 5 between the wheels 4 and stops 10. The wheels 4 run on angle irons 3 which are supported at intervals by steel plates 1, 2. These parts are detachably connected by pins 19. Plates 17 are detachably connected to the loading side of the conveyer by studs 18 and prevent material from being thrown on to the lower run. Curved bars 14 detachably connected to the other side of the conveyer support inclined plates 16 which arrest any material thrown over the belt. Any material which passes between the lower edge of the plates 16 and the edge of the belt is prevented from falling on the lower run of the'belt by deflecting plates 21. In a modification the belt 6, Fig. 2, is clamped between a curved flat bar 5a which carries the axles of the rollers 4, and a thin strip 22 of flexible steel. In each of the constructions shown in Figs. 1, 2, the conveyer is driven by a rope which engages clips 11 capable of slight rotation on pins 13 carried by blocks 12 fixed to the axles 5. In another modification, the upper run of the belt is driven through clips 11<a>, Fig. 9, secured near the centres of the axles 5, and the lower run is driven through clips 11<b>. The driving rope 25, Fig. 5, is driven by a motor 23 through a sheave 24 around which it is wrapped two or three times and over which it passes to a return pulley 26. From the pulley 26 it passes round a pulley 32, Fig. 3, and is clipped to the lower run where the track 3 rises. The rope is unclipped where the track descends and passes over sheaves 30, 33 to the sheave 27, whence it passes round sheaves 28, 29 and is clipped to the upper run where the track rises above the sheave 30. At the other end of the upper run the rope is unclipped and passes round a sheave 31 to the driving sheave 24. The sheave 27 is on the same shaft as the drum around which passes the belt. This shaft is adjustable by screws 34 to tighten the belt or to slacken the belt and rope in order to permit the removal of the latter when the conveyer is to be shifted parallel to itself. Two coal face conveyers may be driven by a single motor situated in a roadway or gate extending from the junction of the two conveyers. The belt is divided into sections which are connected by hooks 40, Fig. 11, and slotted plates 38.
Patent GB-155857-A (GB)
Title: Improvements in dwellings
IPC: E04H1/02
Filed: 1919-10-28
Abstract: 155,857. Thomson, R. Oct. 28, 1919. No Patent granted (Sealing fee not paid). Dwellings and rooms, arrangement and design of.-Relates to improvements in cottages &c. whereby a two-storey dwelling is provided in part with a third storey without departing from the usual type of roof. The left-hand side of Fig. 1 shows the ground floor, in which a living room 32 is divided off from the remainder by a partition 31. The other part is subdivided to form a hall or lobby 1 leading from an external doorway 1<a> through an internal doorway 34 to a compartment 33 serving as a scullery and leading by way of a door 34<1> to a larder 35. The fuel compartment 37 is below the ground floor and is reached directly from the lobby by means of steps 38. The stair way 39 leads up to a landing 40 directly over the compartment 37 and containing a w.c. 41. The space 43 between the stairway 39 and the scullery 33 may house a perambulator &c. From the landing 40 a stairway 44 leads to the upper storey which is divided by a partition 45 to form two bedrooms 46, 47 with cupboards 48. A short stairway 49 leads to a landing 49<1> having the bathroom 50. In a modified construction, the bathroom occupies the space below the landing 40, and the fuel compartment may be divided off from it. The space above the landing 49<1> is occupied by an extra bedroom one of the partition walls of which does not reach right up to the ceiling, to facilitate ventilation.
Patent GB-682951-A (GB)
Title: Providing fine running clearance for the blades of turbines, compressors or like bladed fluid flow machines
IPC: F01D11/12
Filed: 1949-03-23
Abstract: 682,951. Grinding. AVERY, B. A., LAVIOLETTE, J. P., BOYD, W., and ROE CANADA, Ltd., A. V. March 21, 1950 [March 23, 1949], No. 7869/49. Class 60. [Also in Group XXVI] In a turbine or compressor, the surfaces of the casing and rotor lying opposite the blade tips of the rotor and casing respectively are given a roughened or abrasive finish so that in the event of contact between the parts, the blade tips are rapidly worn away by a positive grinding action, and the working clearance restored. The surfaces 14, 20 of the spacer rings 13 and 18 on the rotor and casing respectively may be given the roughened or abrasive finish by metal-spraying with a steel-tungsten-molybdenum alloy; by grit-blasting followed by electroplating with chromium; or electro-plating with chromium followed by a reversed electrolytic etch to produce a " porous " chrome film. The finish thus produced is left in a hard, sharprough condition. If the casing or rotor is of aluminium or light alloy, a thin coating of relatively hard material such as chromium or steeltungsten-molybdenum alloy is first superimposed upon the natural surface.
Patent GB-500405-A (GB)
Title: Improvements in and relating to spinning spindles
IPC: D01H1/244
Filed: 1938-03-14
Abstract: 500,405. Centrifugal machines. BRITISH THOMSON-HOUSTON CO., Ltd. March 14, 1938, No. 7883. Convention date, March 12, 1937. [Class 23] [Also in Group IX] A spinning spindle 15 which carries the rotor 14 of its driving motor 10 is supported in bearings 26, 27 in a housing 24 ; the housing is attached by screw bolts 25 at spaced points to a flexible annular member 53 which is attached at intermediate points by bolts 54 to a fixed housing 42. The space between the two housings contains a damping fluid. The tapered upper end of the shaft carries an .adapter 22 and a removable spinning bucket 23. The stator of the motor 10 is secured by clamps 17 in the casing 16 which is secured to the bearing housing 24 by the bolts 25, and which has an upward extension 20 to act as a shield to protect the shaft from any material spilled from the bucket. The upper bearing 26 is a ball bearing, and the lower one 27 is a sleeve bearing mounted below the lower end of a thin sleeve 31 and in a boss 32 in the housing 24. This housing serves as a reservoir for lubricant which can pass through openings 38 in the sleeve 31 ; it is then pumped between the sleeve and the tapered spindle by cavitation whenthe motor is running, to reach the bearing 26. A shield 60 is arranged above this bearing to protect the motor, and a drain plug 35 is screwed into the bottom of the housing. An overhanging flange 57 protects the flexible ring 53, and the opposed flanges 43, 44 form a seal for the space between the housings 24, 42. In this arrangement the spinning device is flexibly supported by the ring 53 and is free to oscillate to a limited extent when passing through its critical speeds. The liquid between the two housings helps to damp the oscillations.
Patent GB-1089564-A (GB)
Title: Improvements in or relating to damp-proof courses
Inventor: PATTERSON NORMAN FREDERICK
IPC: E04B1/64
Filed: 1965-02-24
Abstract: A damp-proof course comprises a strip of an extruded foamed polyolefin resin having a substantially closed cell structure, a density of at least 10 lb./cu. ft., a thickness of 0.05 to 0.5 inch and a width appropriate to the width of the wall.  The polyolefin is preferably polyethylene, which may be expanded using chemical or volatile blowing agents, and which may contain fillers, e.g. silica, alumina or zinc stearate, and/or antioxidants, e.g. 2,6-di-t-butyl-4-methyl phenol and substance such as carbon black giving protection against ultra-violet light.
Patent GB-901897-A (GB)
Title: Process for the polymerisation of 1:2-unsaturated aldehydes
IPC: C08F20/62
Filed: 1959-03-06
Abstract: Alpha, beta-unsaturated aldehydes containing a methylene group in the beta-position are polymerized in an aqueous medium containing a redox catalyst and 1 to 2%, calculated on the weight of the oxidizing component of the catalyst, of ions of a heavy metal capable of existing in different valency states and different from and in addition to the presence of the redox components, e.g. ions of silver, iron, copper and nickel. Aldehydes specified are acrolein, methacrolein and chloracrolein, which may be polymerized alone or together with other monomers, e.g. vinyl and vinylidene chlorides, acrylic acid, acrylonitrile, acrylamide, methyl acrylate, methyl methacrylate and vinyl acetate.  Specified redox catalysts are those using persulphates, hydrogen peroxide or tert.-butyl hydroperoxide as oxidizing components together with alkali metal bisulphites, metabisulphites, thiosulphates, nitrites or phosphites or sodium formaldehyde sulphoxylate as reducing components.  Also present during polymerization may be emulsifying agents, e.g. long chain sulphates and sulphonates, ethylene oxide condensates and protective colloids such as polyacrylic acid, polyvinyl pyrrolidone, vinyl pyrrolidone-acrylic acid copolymers, polyethylene oxide and copolymers of ethylene and propylene oxides.  During the course of the reaction further quantities of catalyst and monomer may be added. At the termination of the reaction ions of valuable metals may be recovered by passing the aqueous solution, free of monomer and polymer, over a cation exchanger.  The Specification describes also the preparation of the oxime of polychloracrolein.
Patent GB-597334-A (GB)
Title: Beat-up motions for circular weaving looms
IPC: D03D37/00
Filed: 1945-03-29
Abstract: 597,334. Circular looms. SAINT FRERES. March 29, 1945, No. 8020. Convention date, Feb. 14, 1942, [Class 142 (ii)] A device for combing and evenly spacing the warp threads and for beating up the weft thread in circular looms comprises a row of loosely rotating wheels 17, 18, 19, provided with pins 20 and mounted behind each shuttle outside the shed, the wheels having a circular movement of translation with an angular speed equal to that of the shuttle and rolling on the layer formed by the warp threads when the shed is closed, the main plane of the wheels being tangential to the well of the loom at a point'behind the. place where the weft thread 21 is inserted. The pins 20 are inclined radially in the direction reverse to the direction of rotation of the wheels, and the intervals between the pins 20 and the heights of the spindles upon which the wheels are mounted decrease from the wheel 17 to the wheel 19.
Patent GB-232198-A (GB)
Title: Improvements in or relating to duplicating apparatus
IPC: B65H5/04
Filed: 1925-03-26
Abstract: 232,198. Schwarz-Presse Akt.-Ges. April 9, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Sheet carriers and forwarders; sheet - registering devices. -A sheet 13 is placed on a table 10 with its edge slightly overlapping the end of the table. The table is mounted on rollers 11 and is reciprocated to feed the sheet into the bite of printing and impression rollers 1 and 12 by means of a bell-crank 5 connected to the table and actuated by a cam 4. The sheet is laid against a side gauge 15 adjustably fixed by bolts passing through slots 19 in the table. To facilitate correct positioning of the sheet, the gauge 15 is graduated and a cursor 16 bearing a datum line 20 is mounted thereon. Graduations 17 are also provided on the table.
Patent GB-116095-A (GB)
Title: Improvements in Focussing Finders for Photographic Cameras.
Inventor: LALIN GEORG SAMUEL
IPC: G03B13/20
Filed: 1918-05-15
Abstract: 116,095. Lalin, G. S. May 16, 1917, [Convention date]. Lens mounts.-For the purpose of adjustment, the lens of a photographic view-finder is mounted in a cell provided with a screw thread engaging a thread 20, Fig. 9, in the mount. The Specification as open to inspection under Sect. 91 (3) (a) describes a modification in which the adjustment of the lens is provided for by mounting it in a cell provided with helical cams 30, Fig. 14 (Cancelled), pressed by springs 36 against hooks 38 carried by a ring 37 which may be rotated by an external button. This subjectmatter does not appear in the Specification as accepted.
Patent GB-862716-A (GB)
Title: Locking mechanism for power transmission
IPC: F16H3/14
Filed: 1959-03-10
Abstract: 862,716. Reverse gear; change-speed control. CATERPILLAR TRACTOR CO. March 10, 1959 [Jan. 5, 1959], No. 8192/59. Class 80 (2). In a bevel forward-neutral-reverse gear, for raising and lowering the scraper blade of a roadgrading machine, wherein a pair of continuously and oppositely-driven bevel wheels 12, 13 are alternatively clutched to a driven shaft 11 by a pair of independently movable dog-toothed clutched members 20, 21 splined on the said shaft, the clutch members are moved to engage the wheels by forks 24, 25 selectively shifted against centring springs 30, 31 by a collar 32 fast on a shift-rod 26 manually controlled by a lever 27, and the fork 24 has dogs 39 co-operating with further dogs 40 on the collar 21 which is actuated by the other fork 25 which dogs 39, 40 engage to positively lock the driven shaft 11 against rotation when the clutch members are both centrally positioned for neutral. The bevel wheels 12, 13 mesh a bevel wheel 14 driven by an input shaft through worm gearing (Fig. 1, not shown). A snap-ring 41 limits the centring movement of the clutch members 20, 21.
Patent GB-156559-A (GB)
Title: Improvements in and relating to the blading of turbines of the type wherein the blades are held by their root ends in a groove in the turbine wheel
IPC: F01D5/30
Filed: 1920-03-19
Abstract: 156,559. Schneider et Cie. Jan. 8, 1920, [Convention date]. Blades.-In a turbine of the type in which the blades are held by their roots in a groove in the turbine wheel and the gap through which they are introduced to the groove is closed by a member of trapezoidal shape, the roots of blades adjacent to the closing-member are made inclined to the radial direction so as to distribute over several blade roots the stresses due to the centrifugal force acting on the closing-member. For example, the contacting surfaces of adjacent blades F, H, J, L, Fig. 3, are inclined as shown. The closing-member comprises two parts D, E; the latter being driven into place last and the former hammered over it to secure it.
Patent GB-568569-A (GB)
Title: Improvements in or relating to the production of vinyl halides
IPC: C07C17/10
Filed: 1941-07-01
Abstract: The chlorination of ethylene and the cracking of ethylene dichloride to yield vinyl chloride are effected simultaneously in one reaction chamber.  Ethylene, chlorine and ethylene chloride are fed into the reaction chamber, if desired, in the presence of a halogen-yielding substance and/or oxygen.  The reaction gases may be washed with a solvent such as ethylene chloride to recover the vinyl chloride, the remaining ethylene being used again as such or separately converted into the dichloride.  The chlorine is preferably introduced at several points in the apparatus. Examples are given.  The process may be applied to the production of other vinyl halides.
Patent GB-681001-A (GB)
Title: Compositions of matter comprising glycidyl ethers and resinous products derived therefrom
IPC: C08G59/42
Filed: 1949-03-28
Abstract: Compositions suitable for use as coating agents, adhesives for laminating, enamels, or varnishes comprise a glycidyl ether of a polyhydric compound and oxalic acid as a curing agent.  Glycidyl ethers used have at least 6 carbon atoms and must have a 1,2-epoxy equivalency which is greater than 1, e.g. diglycidyl ether, diglycidyl ether of ethylene glycol, the ether obtained by reacting bis-(4-hydroxyphenyl) - 2,2 - propane with epichlorhydrin in alkaline solution; glycidyl ethers of polyhydric alcohols, e.g. glycerol, diglycerol, erythritol, pentaglycerol, pentaerythritol, mannitol, sorbitol, polyallyl alcohol or polyvinyl alcohol; these are obtained by reacting the polyalcohol with epichlorhydrin in presence of borontrifluoride, hydrofluoric acid or stannic chloride as catalyst, followed by dehydrochlorination, e.g. with sodium aluminate. Glycidyl ethers obtained by reacting polyhydric phenols with epichlorhydrin are also suitable.  The oxalic acid used is preferably oxalic acid dihydrate.  60-170 per cent per equivalent weight of acid is used and the compositions are cured at 50-250 DEG  C.  The compositions are used dissolved in solvents, e.g. ketones, acetates, and monoalkyl ethers of ethylene glycol; they may be used in combination with toluene, benzene or xylene.  The examples all refer to Resin "A" which is prepared by reacting 4 mols. bis-phenol with 5 mols. epichlorhydrin in presence of 6.43 mols. NaOH (as 10 per cent aqueous solution) at about 100 DEG  C., decanting the aqueous layer and dehydrating the resin at 150 DEG  C.  A table is given showing other ratios of bis-phenol/epichlorhydrin/NaOH which may be used. Compositions may include fillers such as titanium oxide, antimony oxide, carbon black, chrome yellow, zinc oxide, para red, wood flour, talc, a -cellulose and zinc sulphide. Compounds specified, which all contain 8-10 per cent oxalic acid by weight of the resin, are: examples (1-4) equal parts of resin A and methyl ethyl ketone; (5) 30.8 per cent Resin A, 30.8 per cent TiO2, 38.4 per cent monomethyl ether of ethylene glycol; (6) 26.8 per cent Resin A, 26.8 per cent TiO2, 18.1 per cent methyl ethyl ketone, 15.1 per cent monomethyl ether of ethylene glycol; (7) 21.9 per cent Resin A, 21.0 per cent para red pigment, 21 per cent methyl ethyl ketone, 15.5 per cent n-butyl acetate, 18.5 per cent xylene; (8) 34.8 per cent Resin A, 26.5 per cent chrome yellow, 17.4 per cent monobutyl ether of ethylene glycol, 16.3 per cent xylene; (9) 49.8 per cent Resin A, 4.1 per cent carbon black, 23.8 per cent monobutyl ether of ethylene glycol, 22.3 per cent xylene.
Patent GB-742238-A (GB)
Title: Improvements in barrier layer cells
Inventor: BILLIG ERNST
IPC: H01L21/00
Filed: 1951-10-24
Abstract: 742,238. Semiconductor devices. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd. Oct. 23, 1952 [Oct. 24, 1951], No. 8344/55. Divided out of 742,172. Class 37. A sharply defined PN junction is produced by passing a current pulse in the reverse direction through a solid piece of impurity material in contact with semiconductor material of one conductivity type, to diffuse the impurity into the semiconductor and convert it to the opposite conductivity type. The semiconductor may consist of germanium, silicon or cadmium sulphide, and the impurity of indium, aluminium, arsenic or bismuth. The Provisional Specification also describes other methods of producing PN junctions as described in Specification 742,172.
Patent GB-472281-A (GB)
Title: Improvements in or relating to gyroscopes, centrifugal governors and the like
IPC: F16F15/32
Filed: 1936-03-20
Abstract: In mechanisms of the type comprising one or more massive rotating members, for example high-speed engine crank-shafts, gyroscope flywheels, and centrifugal governors, the massive rotating member is a body having a density greater than 15 and tensile strength greater than lead and produced by a process comprising heating a mixture of fine powders of tungsten, copper, and nickel, preferably 90-95 per cent of tungsten, 3-5 per cent of nickel, and 2-5 per cent of copper, to not less than 1350 DEG  C. Specification 447,567 is referred to.
Patent GB-993121-A (GB)
Title: Linear superpolyester production
Inventor: COOVER HARRY WESLEY
IPC: C08G63/85
Filed: 1961-03-08
Abstract: Linear superpolyesters are prepared by subjecting to solid-phase polymerization in the presence of certain titanium catalysts, particles of at least one prepolymer having an inherent viscosity of 0.1-0.45 which particles pass substantially through a 20-mesh screen with less than 25% passing a 200 mesh screen; the polymerization being effected at 175-350 DEG  C. at 5-80 DEG  C. below the melting point of the prepolymer and in the presence of a gas at about atmospheric pressure which flows through the polymerization zone at 10-1000 ml. of gas per minute per gram of the particles, any particles more than 5 mm. from the surface being agitated into contact with the inert gas.  The superpolyesters produced melt at 180-350 DEG  C., have an inherent viscosity of at least 0.5, and are those of at least one glycol and at least one dicarboxylic acid of which at least 50 mole per cent is a dicarboxylic acid having its two carboxylic groups attached to at least one carbocyclic nucleus having 4-6 carbon atoms per ring. The catalysts are those of formula <FORM:0993121/C3/1> wherein R is an alkyl radical containing 1-6 carbon atoms; R1, R2 and R3 are alkyl radicals containing 1-6 carbon atoms or aryl radicals containing 6-9 carbon atoms; M is an alkali metal; and M1 is magnesium, calcium or strontium compound.  It may be used in admixture with a lead and/or antimony compound.  The prepolymer particles may be prepared by grinding prepolymer obtained (a) by casting molten prepolymer as a thick sheet and allowing it to cool slowly or (b) by passing molten prepolymer into water. Prepolymers as prepared in Specification 993,122 may be used.  The crystallinity of the prepolymer particles may be enhanced by treating them with a volatile organic liquid (e.g. acetone).  The gas used in the solid-phase polymerization may be substantially inert (i.e. containing less than 2% oxygen), whereby colourless superpolyesters are produced, or it may be air, whereby coloured, superpolyesters result. Polymerization may be effected in a horizontal or slightly tilted tube (which may rotate) or in an upright fluidized blender. The prepolymer may be polymerized in the presence of a high molecular weight polyester to produce an ordered copolymer.  Examples describe the solid-phase polymerization of (1)-(5) and (11)-(17) the polyester of 4,41-sulphonyl dibenzoic acid, succinic acid and 1: 5-pentanediol; (6) the polyester of 4,41-sulphonyl dibenzoic acid, terephthalic acid and 1: 5-pentanediol; (7) polyethylene terephthalate; (8) polyethylene isophthalate in the presence of high molecular weight polyethylene terephthalate; (9) the polyester of Example 1 in the presence of poly-N-tert.-butylacrylamide (to improve the dyeability); (10) the polyester of Example 1 viscosity stabilized with methyl benzoate. Specifications 777,216 and 818,157 also are referred to.
Patent GB-634058-A (GB)
Title: Supports for bicycles
IPC: B62H1/02
Filed: 1948-03-23
Abstract: 634,058. Cycle supports. SHERRIN, E. G. March 23, 1948, No. 8494. [Class 136 (i)] A cycle support consists of a metal rod A having a hook B formed integrally with it at its upper end, the hook engaging an eye C formed in one end of a bolt D which forms one of the securing members holding a two-part clip E, F in place on the frame. A spring H connects the rod with the cycle holding it in position when not being used and a thin metal guard I attached to the back spindle prevents the end of the rod pushing through the spokes of the cycle wheel.